11112010200121 has 2 divisors, whose sum is σ = 11112010200122. Its totient is φ = 11112010200120.

The previous prime is 11112010200091. The next prime is 11112010200191. The reversal of 11112010200121 is 12100201021111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11025022956025 + 86987244096 = 3320395^2 + 294936^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112010200121 - 2²³ = 11112001811513 is a prime.

It is not a weakly prime, because it can be changed into another prime (11112010200191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556005100060 + 5556005100061.

It is an arithmetic number, because the mean of its divisors is an integer number (5556005100061).

Almost surely, 2^{11112010200121} is an apocalyptic number.

It is an amenable number.

11112010200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112010200121 is an equidigital number, since it uses as much as digits as its factorization.

11112010200121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11112010200121 its reverse (12100201021111), we get a palindrome (23212211221232).

The spelling of 11112010200121 in words is "eleven trillion, one hundred twelve billion, ten million, two hundred thousand, one hundred twenty-one".